613040142 has 64 divisors (see below), whose sum is σ = 1453406976. Its totient is φ = 169935360.

The previous prime is 613040123. The next prime is 613040143. The reversal of 613040142 is 241040316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613040143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93793 + ... + 100115.

It is an arithmetic number, because the mean of its divisors is an integer number (22709484).

Almost surely, 2^613040142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613040142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726703488).

613040142 is an abundant number, since it is smaller than the sum of its proper divisors (840366834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613040142 is a wasteful number, since it uses less digits than its factorization.

613040142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6465.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 613040142 is about 24759.6474530636. The cubic root of 613040142 is about 849.4991938031.

Adding to 613040142 its reverse (241040316), we get a palindrome (854080458).

The spelling of 613040142 in words is "six hundred thirteen million, forty thousand, one hundred forty-two".